Improvement in pneumatic centrifugal power-regulators



tltted Stabat n-tent- @tiling CHARLES A. SULLIVAN, OF STARIIVILLE, MISSISSIPPI.

YLetters Patent No. 98,314, dated December 28, 1869. l

IMPROVEMENT PNEUMATIC CENTRIFUG-AL POWER-REGULATORS.

The Schedule referred to in these Letters Patent and making part of the same A represents a cylinder, within which (and on the shaft a) is a spring, which is wound up by means of a vcrank applied `to extremity, or in any other convenient manner.

Attached to the said spring-cylinder is a large spurwheel, B, both of said parts being fast upon the said shaft A.

The spur-wheels C D, piuions C D', bevel-gears H G, and their supportingshaits b c e, serve as a means of transmitting pow'cr to the shaft f, by which the same is rotated.A

E is a pinion, which receives motion from the gear D and drives the shaft d, having thereon the brakewheel 11 and automatic regulator' G.

The brake-whcel is acted upon by a spring-rubber," g, and adjusting-screw h., by which the actuating-power may at any time be arrested. l

The fan-wheel or regulator G is provided with wings, which are forced by spring-pressure to its circumference, and retained there until a certain velocity is ac quired by the machinery.

IVhen this initial velocity is obtained, the centrifugal force causes these wings to overcome the springpower, and to present, as they revolve, an expanded surface to the air.

This surface becomes greater as the power is increased and the velocity accelerated, and requires a very considerable portion of the said power to overcome it, but if'the velocityis retarded by any other cause, then these wings close more or 1essand thus serve to equalize the motion of the machinery and maint-aiu a uniformity of resistance to the evolution of the spring.

' .I do not seek to claim any' of the above mechanical parts specifically; but

What I do esteem t0 be my invention, and desire to protect by Letters `Patent, is

1. A centrifugal power-regulator, consisting of a fan-wheel with wings pressed by springs to its periphery, and rising therefrom automatically when a certain initial velocity is attained, but constantly presenting a more expandedsurface and a greater resistance 'as the said velocity increases, all as shown and described.

2,'The combination cfa fan-wheel, G, constructed and operating as described, with a spring-propelling wheel, and suitable connecting-mechanism to automaticaliy prevent a too rapid evolution of the spring, as -set forth.

3. The combination of the automatic fan-Wheel regulator, spring-driving wheel1 and a rotating shaft, said instrumentalities being connected by suitable mechanism, l and operating together substantially in the manner specied.

C. A. SULLIVAN. Witnesses: y

T. GILLESPIE, J. W. WOODWARD. 

